OK, this is slightly different from what ya'll are describing (Milwaukee doesn't get a whole lot of tourism) but...
I've been on campus for the summer and there are a lot of tour groups of prospies and new freshmen tromping around. Most of them seem normal and sane - but some!!!!
"Wow Dad, that dorm is taller than our courthouse!" (All the dorms are, dumbbutt...have you not noticed you're in a city?!)
"I can't believe all the studios are at least $350/month! In our town, you can get a McMansion for $350/month!" (And could we fit your whole town in a dorm? YES!)
"Sweetie, I don't know if you should come here...there are an awful lot of (stage whisper)BLACK PEOPLE(/whisper) in this town." (Well, gee, you're going to college in downtown Milwaukee and you expected it to be lily white?)
My campus is roughly from 9th to 17th Streets, and has 3 cross streets running through it. Not very large, not very difficult. You do NOT need to unfold the gigantic poster size Marquette map to get from 16th and Wisconsin to 16th and Wells. Really, you don't. It's not hard.
Don't point and gawk at all the "tall" buildings. Don't be surprised at the crosses in the classrooms and the church in the middle of campus -- they weren't kidding when they said it was a Jesuit university. Also, those men in the funny collars are priests, you don't need to point at them either!